# LSPIV vs Icelandic Dictionary

The clearest difference is in-app purchases: LSPIV at none against Icelandic Dictionary's 3. LSPIV also leads on iOS requirement (11.0 vs 15.6). Icelandic Dictionary's advantage is update cadence (every 2 months vs every 13 months). On price, ads and device support there is nothing between them.

Both are free to download. Icelandic Dictionary sells 3 in-app purchases, starting at $2.99 per month. LSPIV asks for nothing beyond the download.

LSPIV ships an update every 13 months, Icelandic Dictionary every 2 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | LSPIV | Icelandic Dictionary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lspiv/id981387743/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 71 MB | 24 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryota Tsubaki](https://appshunter.io/developer/981387742) | [iGeniusDev Technology](https://appshunter.io/developer/664580924) |

## What reviewers say

### LSPIV

[App page](https://appshunter.io/ios/app/lspiv/id981387743)

This application enables large-scale particle image velocimetry (LSPIV) using a smartphone. It offers a non-intrusive method for measuring water surface velocity distribution in both field and lab settings. The app provides instant ortho-rectification of captured images without needing ground control points.

**Highlights:** Large-scale particle image velocimetry, Water surface velocity measurement, Non-intrusive velocimetry, Smartphone implementation, Instant ortho-rectification, No GCPs required

**Features:** macOS Compatibility

**In-app purchases:** none


### Icelandic Dictionary

[App page](https://appshunter.io/ios/app/icelandic-dictionary-offline/id6739049425)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Icelandic Dictionary Sabdakosh | $2.99 | per month |
| English Icelandic Dictionary | $29.99 | per year |
| English - Icelandic Dictionary | $39.99 | one-time |


## Frequently asked questions

### Is LSPIV free?

LSPIV is free to download, with no in-app purchases.

### Is Icelandic Dictionary free?

Icelandic Dictionary is free to download, with in-app purchases available.

### Do LSPIV or Icelandic Dictionary have ads?

Neither LSPIV nor Icelandic Dictionary shows ads.

### Which is updated more often, LSPIV or Icelandic Dictionary?

LSPIV ships an update every 13 months, and Icelandic Dictionary every 2 months. Most recently, LSPIV was updated on November 1, 2026 and Icelandic Dictionary on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*